eval

Documentation

Overview

Package eval facilitates compile-time evaluation of expressions. This covers arithmetic and comparison operations.

Index

• func Evaluate(instr *parser.List, resolve referenceFunc, scope parser.Scope) error
• type Error
  • func NewError(pos parser.Position, f string, argv ...interface{}) *Error
  • func (e *Error) Error() string

Functions

func Evaluate

func Evaluate(instr *parser.List, resolve referenceFunc, scope parser.Scope) error

Evaluate evaluates the expressions in the given instruction.

Types

type Error

type Error struct {
	Pos parser.Position
	Msg string
}

Error defines a evaluation error with source context.

func NewError

func NewError(pos parser.Position, f string, argv ...interface{}) *Error

NewError creates a new, formatted error message with the given source context.

func (*Error) Error

func (e *Error) Error() string